LOUIS GRAVES, his parents and siblings are found in the 1855 Pewaukee twp., Waukesha Co., Wisconsin census also.I believe this is where Louis & Abigail met and married since their first 2 son’s (who may be twins) were born in Wisconsin.They migrated via sailing vessel across Lake Michigan to Muskegon Co., Michigan in 1857, along with Louis’s parents & siblings. Another possible link/clue is that there is a HARRIS BULLMAN in Waukesha Co., Wisconsin. Louis & Abigail’s11th son was named HARRIS.They also named their 1st born son HENRY, there is a HENRY BULLMAN in the 1860 New Berlin twp., Waukesha Co., Wisconsin.